Home / 3,431.16-4,735.35-2,172.29

Finding the Fourth Proportional to 3,431.16, 4,735.35 and 2,172.29

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Solution

The fourth proportional to 3,431.16, 4,735.35 and 2,172.29 is: 2,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.16 : 4,735.35 = 2,172.29 : x
  2. Step 2: Convert to fraction form
    3,431.16/4,735.35 = 2,172.29/x
  3. Step 3: Cross multiply
    3,431.16x = 4,735.35 × 2,172.29
  4. Step 4: Simplify right side
    3,431.16x = 10,286,529.77
  5. Step 5: Solve for x
    x = 10,286,529.77/3,431.16
  6. Step 6: Final answer
    x = 2,997.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.